Fix region highlighting and skipping

Ref #8

syntax_files/python3.yaml

@@ -16,9 +16,9 @@ rules:
       # types
     - type: "\\b(bool|bytearray|bytes|classmethod|complex|dict|enumerate|filter|float|frozenset|int|list|map|memoryview|object|property|range|reversed|set|slice|staticmethod|str|super|tuple|type|zip)\\b"
       # definitions
-    - identifier: "def [a-zA-Z_0-9]+"
+    - identifier: "def [a-zA-Z_0-9]+" 
       # keywords
-    - statement: "\\b(and|as|assert|break|class|continue|def|del|elif|else|except|finally|for|from|global|if|import|in|is|lambda|nonlocal|not|or|pass|raise|return|try|while|with|yield)\\b"
+    - statement: "\\b(and|as|assert|break|class|continue|def|del|elif|else|except|finally|for|from|global|if|import|in|is|lambda|nonlocal|not|or|pass|raise|return|try|while|with|yield)\\b" 
       # decorators
     - brightgreen: "@.*[(]"
       # operators
@@ -41,12 +41,14 @@ rules:
     - constant.string:
         start: "\""
         end: "\""
+        skip: "\\\\."
         rules:
             - constant.specialChar: "\\\\."
 
     - constant.string:
         start: "'"
         end: "'"
+        skip: "\\\\."
         rules:
             - constant.specialChar: "\\\\."